Nops meridionalis Keyserling, 1891

Sánchez-Ruiz, Alexander & Brescovit, Antonio D., 2018, A revision of the Neotropical spider genus Nops MacLeay (Araneae: Caponiidae) with the first phylogenetic hypothesis for the Nopinae genera, Zootaxa 4427 (1), pp. 1-121 : 89-94

Nops meridionalis Keyserling, 1891

Figures 58A‒G ; 60A‒L; 61A‒L; 62A‒L; 63A‒F

N. meridionalis: Keyserling, 1891: 24 , pl. 1, fig. 6. Male holotype from Taquara do Novo Mundo (currently Taquara), Rio Grande do Sul, Brazil, V. Ihering (NHM 498; examined).

Additional material examined. BRAZIL: Rio Grande do Sul: Maquiné, Fepagro, (29°30′S, 50°12′W), 18‒27.i.2002, Equipe BIOTA, 1♀ ( IBSP 117056 ) . Cidreira , 29.xi.2003, 1♂ ( MCTP 21986 ) . Ditto , 04.x.2003, J. Alvenir, 1♂ ( MCTP 27791 ) . Ditto , 6.ix.2003, 1♂ ( MCTP 21977 ) . Ditto , 6.ix.2003, 2♂ ( MCTP 21975 ) . Ditto , 6.ix.2003, 1♂ ( MCTP 21976 ) . Ditto , 17.iv.2003, 1♂ ( MCTP 21971 ) . Ditto , 17.iv.2003, 1♀ ( MCTP 27788 ) . Ditto , 4.x.2003, 1♂ ( MCTP 21982 ) . Ditto , 4.x.2003, 3♂ ( MCTP 21979 ) . Ditto , 4.x.2003, 1♂ ( MCTP 21980 ) . Ditto , 4.x.2003, 1♂ 1♀ ( MCTP 27792 ) . Ditto , 4.x.2003, 1♂ ( MCTP 21978 ) . Ditto , 4.x.2003, 1♂ ( MCTP 21981 ) . Ditto , 26.xii.2003, 1♂ ( MCTP 21990 ) . Ditto , 1.xi.2003, 1♂ 1♀ ( MCTP 21983 ) . Ditto , 12.vii.2003, 1♂ ( MCTP 21973 ) . Ditto , 29.xi.2003, 1♂ ( MCTP 21987 ) . Ditto , 29.xi.2003, 2♂ ( MCTP 21985 ) . Ditto , 29.xi.2003, 1♂ ( MCTP 21989 ) . Ditto , 1.xi.2003, 3♂ ( MCTP 21984 ) . Ditto , 29.xi.2003, 2♂ ( MCTP 21988 ) . Ditto , 17.iv.2003, 1♂ ( MCTP 21970 ) . Ditto , 17.iv.2003, 1♂ ( MCTP 21972 ) ; all collected by J. A.M. Pinto. Ditto, 4.x.2003, 1♂ (MCTP 27791). Ditto , 8‒22. iii.2004, 1 immature ( MCTP 27 787) . Ditto , 21.iii.2004, 1♀ ( MCTP 27796 ) . Ditto , 26.xii.2003, 1♂ ( MCTP 27793 ) . Ditto , 26.xii.2003, 1♂ ( MCTP 27794 ) . Ditto , 26.xii.2003, 1♀ ( MCTP 27795 ) . Ditto , 12.vii.2003, 1♂ (malformation in bulb and embolus) ( MCTP 27789 ) . Ditto , 06.ix.2003, 2♂ ( MCTP 27790 ) ; all collected by J. Alvenir. Canela, (29°21′57″S, 50°48′57″W), 2.viii.1965, A.A. Lise, 3♀ (MCN 33). Morro Ferrabraz, Sapiranga, 29.iv.1975, T. Arigony, 1♀ (MCN 2763). Guaíba (30°6′50″S, 51°19′30″W), 17.iii.1995, A.A. Lise, 1♂ ( MCTP 5916 ) . Ditto , 13.viii.1989, A.B. Bonaldo, 1♂ ( MCN 18595) . Ditto , 28.iv.1995, A.A. Lise, 1♀ ( MCTP 7532 ) . Ditto , 29.ix.1994, A.A. Lise, 2♀ ( MCTP 5692 ) . Guaíba, Fazenda Matzenbacher, 26.viii.1994, A.A. Lise, 2♀ (MCTP 5444). Ditto , 1♂ ( MCTP 5443 ) . São Francisco de Paula, Salto , 18‒27.vi.2001, G.M. Petersen, 1♀ ( MCTP 13677 ) . São Francisco de Paula, Potreiro Velho , x.2001, L.A. Bertoncello, 1 immature ( MCTP 22895 ) . Ditto , 30.iv‒6.v.1997, J. Ketterl, 1♂ ( MCPT 17529 ) . Ditto , 09.viii.2001, R. Ott, 1♂ ( MCTP 18488 ) . Ditto , ii.2001, L.A. Bertoncello, 1♂ ( MCTP 22895 ) . Torres (29°20′6″S, 49°43′37″W), Colonia São Pedro , 19.v.1994, A.A. Lise, 1♀ ( MCTP 4871 ) . Charqueadas (29°57′18″S, 51°37′30″W), Capão da Roca , 25.ix.2003, R. Ott, 1♂ ( MCN 37039) . Porto Alegre, Belén Velho, 31.viii.1995, A.F. Béda, 4♀ (MCTP 6487). Porto Alegre, Itapuã, 6.x.1996, E. Albuquerque, 1♀ (MCN 27754). Porto Alegre, Morro Santana, 22.viii.1981, A.A. Lise, 2♂ (MCN 9832). Ditto , 17.v.1980, A.A. Lise, 1♂ ( MCN 9093 ) . Porto Alegre, Reserva Biolόgica do Lami José Lutzemberger (30°15′S, 51°05′W), 20.x.2005, R. Moraes, 1♂ ( MCN 40283) . Porto Alegre , 19.vii.1963, C.A. Hartleib & J. Pacini, 3♂ 3♀ ( MCN 1182 ) . Porto Alegre, Ponta Grossa, 13.ix.1975, A.A. Lise 1♀ (MCN 2997). Ditto , 8.ix.1975, A.A. Lise, 1♀ 1 immature ( MCN 2958 ) . Viamão, Arroio Tres Figueiras (29°56′S, 50°45′W), 13.vii.2000, A.B. Bonaldo, 1♂ (MCN 33003). Ditto , iv.2002, L.E. Schneidt, 1♀ ( MCTP 13735 ) . Ditto , 2.xii1994, A.A. Lise, 1♀ ( MCTP 5873 ) . Viamão (30°4′51″S, 51°1′22″W), Parque Estadual de Itapuã , 14.v.2004, 1♂ ( MCTP 16905 ) . Ditto , 22.ix.2003, 1♂ ( MCTP 16900 ) . Ditto , 21.x.2003, 1♂ 1♀ ( MCTP 16916 ) . Ditto , 8.x.2004, 2♂ ( MCTP 16930 ) . Ditto , 18.xi.2003, 1♀ ( MCTP 16888 ) . Ditto , 18.xi.2003, 1♂ 1♀ ( MCTP 16907 ) . Ditto , 17.xii.2003, 1♀ ( MCTP 16901 ) . Ditto , 28.viii.2003, 1♂ 1♀ ( MCTP 16925 ) . Ditto , 28.viii.2003, 1♂ ( MCTP 16909 ) . Ditto , 28.viii.2003, 1♀ ( MCTP 169259 ) ; all collected by A.C. Ferreira. Ditto, 12.viii.2003, L.C. Schmidt, 1♂ (MCTP 16924). Ditto , iv.2002, L.E.C. Schmidt, 1♀ ( MCN 34773) . Viamão , 14.ix.1996, 1♂ 1♀ ( MCTP 9622 ) . Ditto , 19.iv.1968, A.A. Lise, 1♀ ( MCN 577 ) . Ditto , 8.x.1997, L.A. Moura, 1♀ ( MCN 28580) . Viamão, Mata junto a nascente do arroio Itapuã , 11.ix.2001, L.C. Schmidt, 2♂ ( MCN 34292) . Ditto, Estação Experimental Fitotécnica , 25.viii.1995, A.A. Lise, 1♀ ( MCTP 7577 ) . Viamão, Bairro Agronomia, 3.ix.1977, Betina, 1♀ (MCN 7085). Viamão, Colégio Maristas, 19.viii.1994, A.A. Lise, 1♂ (MCTP 5315). Viamão, Foz do Arroio Itapuá , 11.ix.2001, L.E.C. Schmidt, 1♂ 1♀ ( MCN 34277) . Viamão, Morro do Côco , x.1975, A.A. Lise, 1♀ ( MCN 3388 ) . Ditto , 25.iv.1975, A.A. Lise, 1♀ ( MCN 2851 ) . Osόrio (29°53′13″S, 50°16′12″W), 11.ix.1955, L. Buckup, 1♀ (MCN 1623). Minas de Leão , (30°7′37″S, 52°2′52″W), 20.iii.2008, L.R. Podgaiski, 1♂ 1♀ 1 immature ( MCN 44405) . Ditto , 13.iii.2008, Fazenda Ponta, L.R. Podgaiski, 2♂ 1♀ ( MCN 44401) . Triunfo, Parque Estadual Delta do Jacuí , 28.i.1999, A.B. Bonaldo, 1♂ ( MCN 30200) . São Francisco de Paula (29°26′52″S, 50°35′2″W), Centro de Pesquisas e Conservação da Natureza Prό‒ Mata , 25.x.2000, 1♂ ( MCN 38975) . Ditto, Potreiro Velho, x.2001, L.A. Bertoncello, 1 immature (MCTP 22895). Ditto , 30.iv‒6.v.1997, J. Ketterl, 1♂ ( MCPT 17529 ) . Ditto , 09.viii.2001, R. Ott, 1♂ ( MCTP 18488 ) . Ditto , ii.2001, L.A. Bertoncello, 1♂ ( MCTP 22895 ) . Palmares do Sul (30°15′28″S, 50°30′36″W), Lagoa do Casamento , Ilha Grande, 8.v.2003, Equipe PROBIO, 1♂ ( MCN 35631) . Ditto , 13.xi.2003, R . Ott. 1 ♀ (MCN 46960). Ditto, Fazenda das Almas , 7‒11.v.2003, Equipe PROBIO, 1♂ ( MCN 35623) . Barra do Ribeiro (30°17′27″S, 51°18′3″W), Fazenda Boa Vista , 12.v.2003, Equipe PROBIO, 2♂ ( MCN 35562) . Novo Hamburgo (29°40′40″S, 51°7′51″W), Morro dos Bois , 10.vi.1986, C. Sinval, 1♀ ( MCN 15138) . São Leopoldo (29°45′36″S, 51°8′49″W), 12.vi.1992, A.C. Meyer, 1♀ ( MCN 24731) . Mostardas / Tavares, Parque Nacional da Lagoa do Peixe (31°19′0″S, 51°1′0″W), 16.iv.1991, N. Silveira, 1♀ ( MCN 20844) . Rio Pardo , 10.xii.1966, A.A. Lise, 1♀ ( MCN 1459 ) . Santa Catarina: Pedras Grandes (28°26′9″S, 49°11′6″W), Rancho dos Bugres , 26.vii.2011, 2♂ ( MCTP 33414 ) . Ditto , 16.x.2010, 1♂ ( MCN 48176) . Ditto , 14.vi.2011, 1♂ ( MCTP 33463 ) . Ditto , 20.i.2011, 1♂ ( MCTP 33438 ) . Ditto , 20.viii.2011, 1♀ ( MCTP 33413 ) ; all collected by L.T. Neto. Florianόpolis, Reserva Biolόgica Marinha do Arvoredo, Ilha de Arvoredo (27°17′0″S, 48°22′0″W), 15‒16.x.1993, A.A. Lise, 1♀ 2 immature ( MCTP 4066 ) . Ditto, Itacurubí, Campus da UCAD, 2004, J. Steiner, 1♀ (IBSP 91090). Ditto , 1.ix‒8.xi.2003, C. Carlos, 1♂ ( IBSP 144311 ) . Ditto, Costão do Santinho, Morro das Aranhas , 2007, F. Albertoni, 1♂ ( IBSP 144234 ) . Ditto, Lagoa do Peri (27°43′S, 48°32′W), 2007, M.I.M. Hernandez, 3♂ 1♀ ( IBSP 117341 ) . Urussanga (28°31′4″S, 49°19′15″W), Rio Molha , 23.ix.2006, R.A. Teixeira, 1♂ ( IBSP 79820 ) . Porto Belo (27°9′28″S, 48°33′10″W), Praia de Bombas , 14.ii.1990, A.D. Brescovit, 1♂ ( MCN 19441) .

Diagnosis. Both sexes resemble the similar congener Nops minas , which have a similar abdominal pattern as in figure 6I, and by having the PLS longer than PMS and the posterior unpaired claws small ( Fig. 5C ); but can be distinguished by a strongly curved embolus, longer than palpal tibia ( Fig. 59B, D ) in males, and a strongly sclerotized lep, remarkable ess and sclerotizations on lateral margins of anterior plate in external female genitalia ( Fig. 59F ).

Description. Male (MCTP 21983): Carapace, sternum, legs and labium orange. Chelicerae, endites and coxae orange yellowish. Abdomen dorsally greenish gray, with the most common pattern as in figure 6I, ventrally light pale gray. Anal tubercle and spinnerets light gray. Total length 8.9. Carapace 5.2 long, 3.8 wide. Sternum 4.6 long, 3.6 wide. Leg measurements: I: 4.1; II: 4.05; III: 3.5; IV: 4.15. Posterior unpaired claws small, as in other three‒clawed spiders ( Fig. 62 A‒C ). PLS longer than PMS ( Fig. 61B ). Palp with an embolus longer than tibia, strongly curved at the first third forming a 90° angle, apical part swollen, the rest thin ( Fig. 59B‒C ; 63B‒C); tip with two ventral short extensions and a reborded dorsal margin ( Figs. 63D‒F ).

Female (MCTP 27788). Carapace, chelicerae, labium, coxae, legs, endites and sternum as in male. Abdomen as in male ( Fig. 59D ). Anal tubercle and spinnerets whitish yellow. Total length 9.5. Carapace 5.5 long, 4.1 wide. Sternum 4.95 long, 3.8 wide. Leg measurements: I: 4.2; II: 4.15; III: 3.7; IV: 4.3. Posterior unpaired claws and PLS as in male. External genital area with strongly sclerotized anterior plate, strongly sclerotized lep and remarkable ess ( Fig. 59F ). Internal genitalia with wide invagination on receptaculum and uterus externus with narrow base ( Figs 59F ; 62J‒L).

Distribution. Known from the Brazilian States of Santa Catarina and Rio Grande do Sul ( Fig. 59H ).

Figures

FIGURE 5. A–C diagrams of tarsal claws in Nops MacLeay showing only distal part of tarsi and claws (other structures as setae, frictional hairs or basal membrane were omitted). A–B Nops guanabacoae MacLeay. C Nops agnarssoni Sánchez–Ruiz, Brescovit & Alayón. D diagram of metatarsus and tarsus I in Nops guanabacoae MacLeay showing membranous modifications of Nopinae legs (other structures as setae, frictional hairs or basal membrane were also omitted). Abbreviations: aj—adesmatic joint, ar—arolium, ca—crista, CwL—claw lever, gl—gladius, MtS –metatarsal dorsal stopper, SC—pretarsal paired claws, IC—pretarsal unpaired claw. Scale bar: 40 µm (A–B), 0.5 mm (D).

FIGURE 58. Nops mathani Simon, female holotype. A habitus, dorsal view. B habitus, ventral view. C spinnerets, ventral view. D habitus, lateral view. E external genitalia, ventral view. F cephalothorax, ventral view. G distribution map. Scale bars: 2 mm (A, B, D), 0.5 mm (C, E), 1 mm (F).

FIGURE 59. Nops meridionalis Keyserling; A–D male (holotype); E–G female (paratype). A habitus, dorsal view. B left palp, prolateral view. C left palp, ventral view. D left palp, retrolateral view. E habitus, dorsal view. F external genital area, ventral view. G internal genitalia, dorsal view. Abbreviations: ap—anterior plate, ess—sclerotization around spiracles, lep—lateral extensions of posterior plate, pp—posterior plate, re—posterior receptaculum, ue—uterus externus. Scale bars: 2 mm (A, E), 0.5 mm (B–D, F–G).

FIGURE 61. Nops meridionalis Keyserling; male (MCTP 27792). A spinnerets posterior view. B same dorsal view. C ALS and PMS, dorsal oblique view. D minor ampullate gland spigot and aciniform gland spigots on left PMS, dorsal view. E minor ampullate gland spigot on right PMS, dorsal view. F anal tubercle, dorsal view. G left leg I, prolateral view. H left tarsus I, prolateral view. I left trochanter I, prolateral view. J left tarsus III, retrolateral view. K left pretarsal claws III, anterior oblique view. L tarsal organ on left tarsus III, dorsal oblique view. Abbreviations: aj—adesmatic joints, ar—arolium, ca—crista.

FIGURE 62. Nops meridionalis Keyserling; A–F male (MCTP27792); G–L female (MCTP27792). A left tarsal claws IV, dorsal view. B same, anterior view. C unpaired claw on leg IV, anterior view. D left pretarsal claws IV, dorsal oblique view. E left pretarsal claws IV, retrolateral oblique view. F tarsal organ on left tarsus IV, dorsal view. G internal genitalia, dorsal view. H same, close up. I gland under the receptaculum, dorsal view. J internal genitalia, posterior view. K same, close up. L same, anterior view. Abbreviations: ap—anterior plate, pp—posterior plate, re—posterior receptaculum, ue—uterus externus.

FIGURE 63. A–F Nops meridionalis Keyserling; male (MCTP 27792); G–L Nops minas n. sp.; G–I male (IBSP 117224); J–L female (IBSP117224). A left bulb, hematodocha, dorsal oblique view. B left bulb, retrolateral view. C same, ventral oblique view. D tip of embolus, retrolateral view. E same, ventral oblique view. F same, close up. G right palp, prolateral view. H tip of embolus, prolateral view. I same, dorsal view. J respiratory system, dorsal view. K receptaculum and uterus externus, dorsal view. L detail of uterus externus, dorsal view. Abbreviations: ete—embolar tip extensions, re—posterior receptaculum, ue—uterus externus.